Repulsion Strength

(Polar molecules, Non-polar molecules, etc.)

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Tracy Tolentino_2E
Posts: 140
Joined: Sat Sep 07, 2019 12:17 am

Repulsion Strength

Postby Tracy Tolentino_2E » Sun Nov 17, 2019 11:17 pm

Why is the electron repulsion strength stronger for lone-lone PR> lone-bonding PR> bonding-bonding PR?

Maya Serota 3G
Posts: 53
Joined: Tue Sep 24, 2019 12:17 am

Re: Repulsion Strength

Postby Maya Serota 3G » Sun Nov 17, 2019 11:19 pm

Lone pairs are close to each other than any other combination of pairs. Therefore lone -lone have the greatest repulsion strength.

claribel charway 1I
Posts: 55
Joined: Wed Sep 11, 2019 12:15 am

Re: Repulsion Strength

Postby claribel charway 1I » Sun Nov 17, 2019 11:30 pm

Lone pairs have the greatest repulsion because they are closer together. Lone bonding is the next strongest because it is the next closest. Bonding-bonding pairs are the weakest because the electrons are more spread apart since each atom takes an electron within its cloud.

Mulin_Li_2J
Posts: 105
Joined: Sat Aug 17, 2019 12:16 am

Re: Repulsion Strength

Postby Mulin_Li_2J » Sun Nov 17, 2019 11:36 pm

Electron repulsion between electron density regions is directly proportional to the size of electron clouds. Since lone paired electrons sense attraction only from one nucleus, they typically take up a larger space and thus exert a larger repulsion force. On the other hand, bonding paired electrons sense attractions from two nucleus, and thus they take up a smaller space and generate a smaller repulsion force. Therefore, lone pairs-lone pairs > lone pairs-bonding pairs > bonding pairs-bonding pairs.

Hope this can help!

Yiyang Jen Wang 4G
Posts: 76
Joined: Wed Nov 21, 2018 12:18 am

Re: Repulsion Strength

Postby Yiyang Jen Wang 4G » Sun Nov 17, 2019 11:36 pm

It depends on the distance between them. Since lone pairs are the closest to each other, they have the greatest repulsion strength.

ShravanPatel2B
Posts: 100
Joined: Fri Aug 30, 2019 12:18 am

Re: Repulsion Strength

Postby ShravanPatel2B » Sun Nov 17, 2019 11:42 pm

Lone pairs have the greatest repulsion strength because they are the closest to eachother.


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